梯形的面积公式是______．
梯形的面积公式=（上底+下底）×高÷2．
故答案为：（上底+下底）×高÷2．
. -----_______ you write so well?
-----By reading and keeping diaries every day.
A. How is it B. What is it C. How is it that D What is it that
加入WTO，我国的道德教育特别要加强哪些方面的教育？
